95stang50

well i went to align my brothers car....and i let him borrow it for a couple days till i could get it in the shop...well he called me and told me the engine was knockin...he said it sounds like a hammer hittin against the block....well it does...BAD!...im tearing it down tonight...but what you guys think this....my buddy wants to sell me a 331 short block for 1200...all forged...or my dad can get ahold of a 351 or a 390 which would you guys think...i wanna use my roush heads and my cam...and what all would i need for a bigger cube motor swap...do they make a kit? thanks guys...im pretty sad about what happen...i didnt even get to take it to the track....thanks

aode08

331 forged , cheaper.

351 will take more cash to build , but I like them.

95stang50

well the 351 and 390 are only about $150 since its my dads friend

dimebag

sounds like a ****ed main/rod bearing to me...

start taking it apart i guess... heads/cam should be saveable, and ur intake deff is ok...

so get the stroker shortblock... and use your top end... your cam will be ok for now but id either go bigger, or get 1.7RRs

dimebag

or go buy an exploder motor and a cam

USMCrebel

351 bore .030
sell stock parts put in forged
mild cam for now
gears

get the same performance or better than the 331 and will handle the stress better.

aode08

also make sure the torque converter bolts didnt come loose

my77stang

you guys all fail


go for the 390. sure, it would be more work to get 'er in there but how many FE motors do you see in foxes? did i mention in stock form you'd be ripping trees outta the ground with that brute?

mjr46

heck a customer of ours and good friend has a 67 cougar gt with the 390 and it's not a speed demon but when you mash it to the floor it has gobs of torque!!! it'll blow their 68 cougar with a 302 outta the water as far as torque gos and throw you back in the seat feel..although the 68 is alot faster

w8less

i'd do the 331 and thenbuy better heads later on down the road